Animalia > Chordata > Aves > Passeriformes > Calcariidae > Rhynchophanes > Rhynchophanes mccownii

Rhynchophanes mccownii (McCown's Longspur)

Synonyms: Calcarius mccownii
Language: Spanish

Wikipedia Abstract

The McCown's longspur (Rhynchophanes mccownii) is a small ground-feeding bird from the family Calcariidae, which also contains the longspurs and snow buntings.
View Wikipedia Record: Rhynchophanes mccownii

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 15.3108
EDGE Score: 2.79183


Adult Weight [1]  25 grams
Birth Weight [1]  2.5 grams
Breeding Habitat [2]  Temperate grasslands
Wintering Geography [2]  Chihuahuan Grasslands
Wintering Habitat [2]  Chihuahuan grasslands, Agricultural
Diet [3]  Carnivore (Invertebrates), Granivore
Diet - Invertibrates [3]  20 %
Diet - Seeds [3]  80 %
Forages - Understory [3]  20 %
Forages - Ground [3]  80 %
Clutch Size [4]  4
Global Population (2017 est.) [2]  950,000
Migration [5]  Intracontinental


Name Countries Ecozone Biome Species Report Climate Land
Chihuahuan desert Mexico, United States Nearctic Deserts and Xeric Shrublands
Montana Valley and Foothill grasslands Canada, United States Nearctic Temperate Grasslands, Savannas, and Shrublands
Northern mixed grasslands Canada, United States Nearctic Temperate Grasslands, Savannas, and Shrublands
Northern short grasslands Canada, United States Nearctic Temperate Grasslands, Savannas, and Shrublands
Western short grasslands United States Nearctic Temperate Grasslands, Savannas, and Shrublands

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Audubon National Wildlife Refuge IV 14642 North Dakota, United States
California Coast Ranges Biosphere Reserve 153447 California, United States  
Carlsbad Caverns National Park II 15448 New Mexico, United States
Central Plains Biosphere Reserve 15345 United States  
Channel Islands National Marine Sanctuary   California, United States
Channel Islands National Park II 139010 California, United States
Chickasaw National Recreation Area V 7025 Oklahoma, United States
Grasslands National Park II 128635 Saskatchewan, Canada
Jornada Biosphere Reserve Ib 30913 New Mexico, United States
Point Reyes National Seashore II 27068 California, United States
Redwood National Park II 77867 California, United States
Sevilleta LTER Site Long Term Ecological Research IV 228335 New Mexico, United States
Shortgrass Steppe LTER Site Long Term Ecological Research   Colorado, United States
Wind Cave National Park II 29471 South Dakota, United States
Yellowstone Biosphere Reserve II 2196863 Idaho, Montana, Wyoming, United States

Prey / Diet

Bouteloua dactyloides (buffalograss)[6]
Eriocoma hymenoides (Indian ricegrass)[6]
Fallopia convolvulus (dullseed cornbind)[6]
Helianthus annuus (Sunflower)[6]
Reynoutria japonica (Japanese knotweed)[6]
Setaria viridis (green bristlegrass)[6]
Triticum aestivum (common wheat)[6]

Range Map

North America;



Attributes / relations provided by
1Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
4Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
5Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
6Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access